ww@GIG:~/pl_test$ perl 674979.pl</p>

                Rate class_nodot       class     literal
class_nodot    242/s          --        -30%       -100%
class          344/s         42%          --       -100%
literal     106283/s      43872%      30824%          --

##</code><code>##

ww@GIG:~/pl_test$ perl 674979.pl
                Rate class_nodot       class     literal
class_nodot   2647/s          --        -30%       -100%
class         3793/s         43%          --        -99%
literal     672122/s      25292%      17620%          --